Bozeman Science
Resistors and Capacitors
In this video Paul Andersen explains how resistors and capacitors affect circuits. The resistance of a resistor is affected by the resistivity of the material and the geometry of the resistor. The current through a resistor can be...
Bozeman Science
Electrochemistry
In this video Paul Andersen explains how electrochemical reactions can separate the reduction and oxidation portions of a redox reactions to generate (or consume) electricity. The half reactions can be analyzed to determine the potential...
TED-Ed
TED-Ed: Why a sausage can do what your gloves cannot | Charles Wallace and Sajan Saini
In 2010, South Korea experienced a particularly cold winter. People couldn't activate their smartphones while wearing gloves, so they began wielding snack sausages— causing one company to see a 40% rise in sausage sales. So, what could...
Crash Course
AC Circuits: Crash Course Physics
We've talked about AC Circuits, but now it's time to delve into the world of AC Circuits (or Alternating Currents). We’ve talked about how they change voltage, which helps transmit electricity over long distances, but there’s so much...
Bozeman Science
Electricity and Electric Circuits
Mr. Andersen introduces the topic of electricity. He differentiates between static electricity and current electricity. An introduction to electric circuits is also included.
Bozeman Science
Kirchoff's Loop Rule
In this video Paul Andersen explains how Kirchoff's Loop Rule can be used to calculate the voltage of different components of a circuit. The sum voltage throughout an entire loop will sum to zero following the law of conservation of...
Bozeman Science
Voltage, Current and Resistance
Mr. Andersen describes the relationship between voltage, current and resistance in an electric circuit. Ohm's Law is introduced through a circuit simulation.
Crash Course
The Nervous System - CrashCourse Biology
Hank begins a series of videos on organ systems with a look at the nervous system and all of the things that it is responsible for in the body.
Crash Course
Voltage, Electric Energy, and Capacitors: Crash Course Physics
So, how do those defibrillators you see on TV actually work? Surprise! Physics can explain! Okay buckle up, everyone! Today, Shini has the task of breaking down Electrical Potential Energy, Electric Potential, Voltage, Capacitors, Energy...
Bozeman Science
Electric Circuits
In this video Paul Andersen explains how electric circuits contain different elements which can be connected in series or in parallel. The following four elements are explained in detail; emf, resistor, capacitor, and switch. The voltage...
Curated Video
Voltage and Resistance
New Review2 minute video describing voltage, current and resistance for middle school science
Curated Video
Texas hot air balloon crash raises safety questions
Investigators trying to determine cause of fatal balloon crash that killed all 16 aboard
Curated Video
Common Beginner Welding Mistakes
Howcast - Learn about common beginner mistakes from sculptor DeWitt Godfrey in this Howcast video.
Curated Video
How to Buy a Bug Zapper
Howcast - A bug zapper is an electronic insect-control system that uses light to attract insects, and then kills them by electrocution. If you're bugged by bugs and want to live pest-free, you need to know what to look for in a bug zapper.
Curated Video
How to Calculate Watts
The amount of power drawn by a household appliance is given in watts. Here's how to calculate wattage.
Curated Video
Comparing series and parallel circuits
Pupil outcome: I can compare the properties of series and parallel circuits that have the same components. Key learning points: - With the same battery, two bulbs in parallel are brighter than two in series. - With the same battery,...
Curated Video
Changing voltage
Pupil outcome: I can describe and apply the rules for voltage in a series circuit. Key learning points: - The voltage of a battery measures the strength with which it can ‘push’ current around a circuit. - The voltage of a component in...
Curated Video
Measuring voltage
Pupil outcome: I can describe how to measure voltage and the effect of different battery voltages on an electric circuit. Key learning points: - Voltage is a commonly used term for potential difference. - A voltmeter is used to measure...
Curated Video
Investigating voltage: do and review
Pupil outcome: I can investigate and explain how voltage affects the brightness of a bulb in a circuit. Key learning points: - Equipment such as a light sensor and data logger can be used to measure and record bulb brightness in lux. -...
Curated Video
Learn how to use the Op-Amp as a Comparator! Op Amp Circuit Design. Comparator Concepts.
In an open-loop configuration, the Gain of the Op-Amp is very large. Learn how we can use this to design a Comparator! Op-Amp Circuit Design. Comparator Concepts. Electronics 101. Electronics Circuit Design.
Curated Video
Internal Resistance of a Battery and Efficiency
In this question, we look at the impact of the internal resistance of a battery on the overall efficiency of the circuit. This is something that is often overlooked. See how much of an impact it has!
Curated Video
Electronics 101: Effect of Load Resistance on Load Voltage
In this question, we examine how the Load Resistance can have a significant impact on the Load Voltage.
Curated Video
Electronics 101: Apply KCL and KVL the right way!
Learn how to apply the concepts of KVL and KCL to solve this question.
Curated Video
Electronics 101: Circuit Analysis using KVL and KCL
Learn how to analyze circuits using KVL and KCL.